Here is a picture of the first roo I ever kept past 6 months. (red sex link) I put 6 four week old chicks out with the other 1 year olds. They picked on them something terrible. So I put them in a separate enclosure and this falcon had 2 for lunch. This roo was going crazy trying to get to the falcon but couldn't. I then enclosed the chicks in a covered pen. This morning a strange cat was trying to get into the pen. This roo kept the cat at bay long enough for the cat to lose interest. I was surprised the roo would defended the chicks even though he is separated from them. I am really impressed how a roo guards and defends the other chickens. He turned out to be fairly good looking and just decided to keep him and I am glad I did. He has proven to be worth all the problems he causes with his possessiveness of the coop and runs. I learned a roo is a must if you have predators. I don't know where he learned how to defend the others and his area but it is impressive. Anyone else have a roo that shows this behaviour? I would love to hear some stories.